Collapsible demountable tire-rim.



, H. WSRZ. COLLAPSIBLE DEMOUNTABLE Tl APPLlcMoN min ocT. l2. 1914. l 1

' Piented Dec. 7, 1915.

RE RIM.

f/ Zi HENRY WIRZ, 0F LOS ANGELES, CALIFORNIA.

COLL-APSIBLE 'DEMUN'IJABLE TIRE-RIM.

Specification of Application led October 12 To all 207mm 'it may concern.'

Be it known that l, Hnxxz lVnaz, n citizen of the lvnited States, residing nt Los Ange les, in the county ot' .los A\ngeles :1nd State of (lnlifornia, have invented a new and use fnl Collapsible Deinonntahle Tire-Rim, of which the following is n specification.

One oi the objects ot' this invention is to provide a no\'el,` practical :1nd extremely simple means t'or seein-ing the ends of n transversely split demonntnhle riin oi" any construction whntsoerer. l

Another and more specific object of the invention is to provide in connection with i transversely split ilelnonntahle riin7 n lever pirotnlly secured to siiitl rni adjacent the split. portion thereof :und adapted to collapse the rini when the latter is disconnected from the 'telly hand so that a titriinay he easily mount-ed :1nd removed.

With these and other objet-ts in View, the invention consistsin rel-tain novel features ot' constructionl` coinliinntion and arrangement oil parts :is will he hereinafter fully described. illustrated und claimed.

Referring-to thtl ilrnwinfrs: yFigure 1 is :t l'rag'nientniw inside View oi' a tire rim constructed in nrgordnnrtwith in v invention. Fig'. i2 is a sri-tion when on the pinne of line .1f-'MN ot' Fill. l. Fig "i is :i transverse section taken on theplane ol line .1"- -a'i ot' Fig. l. Fig'. l is :i scrtion on the plane ol' line .rf-m4 of Fig. 2. Fig 5 is a trnnsrerse sectional \'iew showingr the :nlaiitntion oi' my invention to n tleinointiihle riin. Fig. t3 is n irrig- Inentniy sertionnl View tnlwn on the pinnilof line .r"-.r" ol' Fig'. 5. Figi. T is n i'rnj mentnry side elevation yshowiingr the rim in its collapsed position. Fig. is a trnnsverse sectional View showin.;r in)Y invention as :1pplied to :i demonntalile rin).

ltct'erringr in detail to the drawings hy nn- Inernls, it) designates n demo:lntahle-trnns- `fersely split. riin lnwinjg; outwardly extending,r peripheral flanges ll and i2, the outside flange 'i2 heine' ot' :i less width than the inner llange li lor n purpose to be hereinafter exi'ilnined. rThe rim. when in operative position. is snrroimded h v the nsllnl tire side rings t3 of any commercial design.

In carrying ont my invention. the rim is cnt transversely at a (li-,grec angle, ns indicated by the numeral il, this particular angle being: used so that the ends ot' the rim will properly :ibut when the rim is in service. To lock theiends of the rim. together Letters Patent Patented Dee. 7, 1915.

, 1914. VSerial No. 868,211.

and to separate seid. ends to'collapse the rim when it is desired to remove or mount a tire, I provide a lever 15 curved to conform lto the inner circumference of the rim when in service. One extremity of the lever is pivotnlly connected to the rini portion 15a in spaced relation to the end thereof, as best shown in Figs. l and 2, and the terminal of the other rnn portion 16 is pivotally or hingedly connected to the lever :it n point intermediate of the ends of the lever so that when the lever is swung into Contact vviiith the inner side of the rim, the ends of said rim will be brought vsquarely together. I preferably form the hinged, or pivot connecl tions between the lever i5 and the rim l() by providing the rim with npertnred ears or lugs i7 and offsetting portions ofthe lever Ito form crossover strips 18. Hinge pms i9, :is shown in Fig. 3, extend through the aiiertnred enr 17 und between the .crossover pieces 18 and mein `portion of the lever. The riin l() niajf be mounted on a. wheel in *the nsnnl manner :1nd is provided with an inner cirennilerential recess 20, in which the lever i5 lies when the rim is in use. The lef' ver is provided with n valve stem opening ".21 which is adapted to register with a similar opening 22 in the riin 12. The opening 21 is ronntersnnk as shown to receive the nut on the valve stein thus locking the lever to the rim.

When it is desired to more atire from a' riin in .neefsnid rim is first detached from the wheel and then the free end of the lever is grasped and swung inwardly to separate the ends or' the rim nndicollapse said rim snticiently rio allow the outer side ring- 13 to inist: over the flange 12. The tire may then he slipped outwardly over the lan e 12. The flange il is preferably made o such -nxtirniil diameter that the inner ring 13 will not clear it even When the rim is colinlined. easier to mount a' tire, as .it prevents the inner ring dropping ofi', when n. tire is being placed on the collapsed rim.

In Figs. 5 und 6 I have illustrated in section n demountable-one-pieoe clencher rim slightly modified to moet; the re uirements 'of my invention. The demountatile elencher rim 23 is transversely out in n manner similar to the rim 10., as indicated by the numeral 24, and the ends of the spht rim are joined by n lover Q5 sii'nilarin every respect to the lever 15,' with the exception that its This construction make it much outer face isrrounded, as indicated at 26 to iit snugly a circumferential recess 2T formed in the rim The rim is mounted on the fellly in the usual fashion by means of'a felly band vand clamping wedge lug 30, which latter is held in position by a bolt and nut fastener 3l. The connx'iercial types of deymountable one piece rims for clencher and straight-side type of tire now'iu use are not formed with thehrecess 27, and I lind this recess necessary in order that the lever 25 may be made of sufficient thickness to give the required' strength.

In Fig. 7, I have shown the lever 25 thrown inwardly to space the ends of the I rim 23 and collapse the rim.

In Fig. 8, a cross section through a demountable-rim of a commercial construction new m use 1s shown to' emphasize the fact that my construction of demountable-colllapsible tire rim may bc employed with will be understood that changes of construc.

tion and arrangement of parts, such as fall within the scope of the claims, may be made tain fixed amount whereby the said rings vmay be placed over the smaller of said flanges. p

2. The combination with a transversely split tire rim having a valve-stem receiving opening therein, of means for decreasing the diameter of the' rim, including a lever connected with the rim and having an opening 'therein registering with the opening in the rim.

3. The combination with a transversely i' split tire rim having an nsid: flange and an outside flange extending outwardly from the rim a distance less than the inside flange, clamping rings surrounding the rim and engaging the flanges, and means for decreasin the diameter of the rim a certain fixed amount, whereby the rings may be placed over the smaller of the flanges, said means including a lever having an opening therein, said rim having a tire-valve-stem receiving opening therein adapted toregister with the opening in the lever. A

In testimon whereof I have hereunto set my hand at os Angeles, California, this 1st day of October 1914.-.

HENRY 'WIRZ.

In presence of I RODNEIM. SMITH, LORRAINE E. DURRow. 

